GAfuels reader Pete Howell of the Minneapolis area recently posted an article in the newsletter of the Minnesota Wing of Van’s Air Force describing his experiences burning mogas in his Lycoming O-320 – powered RV-9A. Here is an excerpt:
“Why would anyone want to burn anything other than aviation fuel? Well, the current aviation fuel we use, 100LL, is an expensive compromise and actually may be endangered. Despite the name, it has quite a bit of lead (very nasty stuff) in it, and the environmental lobby is working hard to eliminate it, so it may be gone at some point.
Additionally, there is only one source for the lead additive in our avgas, a plant in England, so supply is not guaranteed.
Finally, unless you have a fire-breathing IO-550, your typical low/mid compression Lycoming-style 4 banger really does not need the lead or higher octane! In fact, the lead tends to gunk up the plugs and forms sludge in your oil….”
The full article can be found on pp. 6-8 at this link. Thanks, Pete!